Earlier quoted context omitted.
Wow, really? I haven't read enough Heinlein - what was that in? I always thought Rapture of the Nerds was grounded in Vinge's "The Coming Technological Singularity" ( https://www-rohan.sdsu.edu/faculty/vinge/misc/singularity.ht... )
I honestly don't recall the name of the specific piece, but I do remember that it's anthologized in his collection Expanded Universe , and it was clearly the "Singularity" he described, although of course not by that name - there's even a chart and a curve for those readers not yet familiar with the concept of exponential growth! I remember it quite well, not least because I'd thought I was years past learning anythi…
http://i.imgur.com/BIfImA3.jpg
This is from the 1950 edition of "Where To?" - if there's an earlier example of the central concept of the "Singularity", I am not familiar with it.